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diff --git a/OpenSim/Services/HypergridService/HypergridService.cs b/OpenSim/Services/HypergridService/HypergridService.cs
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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Reflection;
+using Nini.Config;
+using log4net;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
+using OpenSim.Data;
+using OpenSim.Server.Base;
+using OpenSim.Services.Interfaces;
+using OpenSim.Services.Connectors.Hypergrid;
+using GridRegion = OpenSim.Services.Interfaces.GridRegion;
+using OpenMetaverse;
+
+namespace OpenSim.Services.HypergridService
+{
+    public class HypergridService : HypergridServiceBase, IHypergridService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+
+        private static HypergridService m_RootInstance = null;
+        protected IConfigSource m_config;
+
+        protected IAuthenticationService m_AuthenticationService = null;
+        protected IGridService m_GridService;
+        protected IAssetService m_AssetService;
+        protected HypergridServiceConnector m_HypergridConnector;
+
+        protected bool m_AllowDuplicateNames = false;
+        protected UUID m_ScopeID = UUID.Zero;
+
+        // Hyperlink regions are hyperlinks on the map
+        public readonly Dictionary<UUID, GridRegion> m_HyperlinkRegions = new Dictionary<UUID, GridRegion>();
+        protected Dictionary<UUID, ulong> m_HyperlinkHandles = new Dictionary<UUID, ulong>();
+
+        protected GridRegion m_DefaultRegion;
+        protected GridRegion DefaultRegion
+        {
+            get
+            {
+                if (m_DefaultRegion == null)
+                {
+                    List<GridRegion> defs = m_GridService.GetDefaultRegions(m_ScopeID);
+                    if (defs != null && defs.Count > 0)
+                        m_DefaultRegion = defs[0];
+                    else
+                    {
+                        // Best guess, may be totally off
+                        m_DefaultRegion = new GridRegion(1000, 1000);
+                        m_log.WarnFormat("[HYPERGRID SERVICE]: This grid does not have a default region. Assuming default coordinates at 1000, 1000.");
+                    }
+                }
+                return m_DefaultRegion;
+            }
+        }
+
+        public HypergridService(IConfigSource config)
+            : base(config)
+        {
+            m_log.DebugFormat("[HYPERGRID SERVICE]: Starting...");
+
+            m_config = config;
+            IConfig gridConfig = config.Configs["HypergridService"];
+            if (gridConfig != null)
+            {
+                string gridService = gridConfig.GetString("GridService", string.Empty);                
+                string authService = gridConfig.GetString("AuthenticationService", String.Empty);
+                string assetService = gridConfig.GetString("AssetService", string.Empty);
+
+                Object[] args = new Object[] { config };
+                if (gridService != string.Empty)
+                    m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
+
+                if (m_GridService == null)
+                    throw new Exception("HypergridService cannot function without a GridService");
+
+                if (authService != String.Empty)
+                    m_AuthenticationService = ServerUtils.LoadPlugin<IAuthenticationService>(authService, args);
+
+                if (assetService != string.Empty)
+                    m_AssetService = ServerUtils.LoadPlugin<IAssetService>(assetService, args);
+
+                m_AllowDuplicateNames = gridConfig.GetBoolean("AllowDuplicateNames", m_AllowDuplicateNames);
+
+                string scope = gridConfig.GetString("ScopeID", string.Empty);
+                if (scope != string.Empty)
+                    UUID.TryParse(scope, out m_ScopeID);
+
+                m_HypergridConnector = new HypergridServiceConnector(m_AssetService);
+
+                m_log.DebugFormat("[HYPERGRID SERVICE]: Loaded all services...");
+            }
+            
+            if (m_RootInstance == null)
+            {
+                m_RootInstance = this;
+
+                HGCommands hgCommands = new HGCommands(this);
+                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-region",
+                    "link-region <Xloc> <Yloc> <HostName>:<HttpPort>[:<RemoteRegionName>] <cr>",
+                    "Link a hypergrid region", hgCommands.RunCommand);
+                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "unlink-region",
+                    "unlink-region <local name> or <HostName>:<HttpPort> <cr>",
+                    "Unlink a hypergrid region", hgCommands.RunCommand);
+                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "link-mapping", "link-mapping [<x> <y>] <cr>",
+                    "Set local coordinate to map HG regions to", hgCommands.RunCommand);
+                MainConsole.Instance.Commands.AddCommand("hypergrid", false, "show hyperlinks", "show hyperlinks <cr>",
+                    "List the HG regions", hgCommands.HandleShow);
+            }
+        }
+
+        #region Link Region
+
+        public bool LinkRegion(string regionDescriptor, out UUID regionID, out ulong regionHandle, out string imageURL, out string reason)
+        {
+            regionID = UUID.Zero;
+            imageURL = string.Empty;
+            regionHandle = 0;
+            reason = string.Empty;
+            int xloc = random.Next(0, Int16.MaxValue) * (int)Constants.RegionSize;
+            GridRegion region = TryLinkRegionToCoords(regionDescriptor, xloc, 0, out reason);
+            if (region == null)
+                return false;
+
+            regionID = region.RegionID;
+            regionHandle = region.RegionHandle;
+            return true;
+        }
+
+        private static Random random = new Random();
+
+        // From the command line link-region
+        public GridRegion TryLinkRegionToCoords(string mapName, int xloc, int yloc, out string reason)
+        {
+            reason = string.Empty;
+            string host = "127.0.0.1";
+            string portstr;
+            string regionName = "";
+            uint port = 9000;
+            string[] parts = mapName.Split(new char[] { ':' });
+            if (parts.Length >= 1)
+            {
+                host = parts[0];
+            }
+            if (parts.Length >= 2)
+            {
+                portstr = parts[1];
+                //m_log.Debug("-- port = " + portstr);
+                if (!UInt32.TryParse(portstr, out port))
+                    regionName = parts[1];
+            }
+            // always take the last one
+            if (parts.Length >= 3)
+            {
+                regionName = parts[2];
+            }
+
+            // Sanity check. Don't ever link to this sim.
+            IPAddress ipaddr = null;
+            try
+            {
+                ipaddr = Util.GetHostFromDNS(host);
+            }
+            catch { }
+
+            GridRegion regInfo;
+            bool success = TryCreateLink(xloc, yloc, regionName, port, host, out regInfo, out reason);
+            if (success)
+            {
+                regInfo.RegionName = mapName;
+                return regInfo;
+            }
+
+            return null;
+        }
+
+
+        // From the command line and the 2 above
+        public bool TryCreateLink(int xloc, int yloc,
+            string externalRegionName, uint externalPort, string externalHostName, out GridRegion regInfo, out string reason)
+        {
+            m_log.DebugFormat("[HYPERGRID SERVICE]: Link to {0}:{1}, in {2}-{3}", externalHostName, externalPort, xloc, yloc);
+
+            reason = string.Empty;
+            regInfo = new GridRegion();
+            regInfo.RegionName = externalRegionName;
+            regInfo.HttpPort = externalPort;
+            regInfo.ExternalHostName = externalHostName;
+            regInfo.RegionLocX = xloc;
+            regInfo.RegionLocY = yloc;
+
+            try
+            {
+                regInfo.InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), (int)0);
+            }
+            catch (Exception e)
+            {
+                m_log.Warn("[HYPERGRID SERVICE]: Wrong format for link-region: " + e.Message);
+                reason = "Internal error";
+                return false;
+            }
+
+            // Finally, link it
+            ulong handle = 0;
+            UUID regionID = UUID.Zero;
+            string imageURL = string.Empty;
+            if (!m_HypergridConnector.LinkRegion(regInfo, out regionID, out handle, out imageURL, out reason))
+                return false;
+
+            if (regionID != UUID.Zero)
+            {
+                regInfo.RegionID = regionID;
+
+                AddHyperlinkRegion(regInfo, handle);
+                m_log.Info("[HYPERGRID SERVICE]: Successfully linked to region_uuid " + regInfo.RegionID);
+
+                // Try get the map image
+                regInfo.TerrainImage = m_HypergridConnector.GetMapImage(regionID, imageURL);
+            }
+            else
+            {
+                m_log.Warn("[HYPERGRID SERVICE]: Unable to link region");
+                reason = "Remote region could not be found";
+                return false;
+            }
+
+            uint x, y;
+            if (!Check4096(regInfo, out x, out y))
+            {
+                RemoveHyperlinkRegion(regInfo.RegionID);
+                reason = "Region is too far (" + x + ", " + y + ")";
+                m_log.Info("[HYPERGRID SERVICE]: Unable to link, region is too far (" + x + ", " + y + ")");
+                return false;
+            }
+
+            m_log.Debug("[HYPERGRID SERVICE]: link region succeeded");
+            return true;
+        }
+
+        public bool TryUnlinkRegion(string mapName)
+        {
+            GridRegion regInfo = null;
+            if (mapName.Contains(":"))
+            {
+                string host = "127.0.0.1";
+                //string portstr;
+                //string regionName = "";
+                uint port = 9000;
+                string[] parts = mapName.Split(new char[] { ':' });
+                if (parts.Length >= 1)
+                {
+                    host = parts[0];
+                }
+
+                foreach (GridRegion r in m_HyperlinkRegions.Values)
+                    if (host.Equals(r.ExternalHostName) && (port == r.HttpPort))
+                        regInfo = r;
+            }
+            else
+            {
+                foreach (GridRegion r in m_HyperlinkRegions.Values)
+                    if (r.RegionName.Equals(mapName))
+                        regInfo = r;
+            }
+            if (regInfo != null)
+            {
+                RemoveHyperlinkRegion(regInfo.RegionID);
+                return true;
+            }
+            else
+            {
+                m_log.InfoFormat("[HYPERGRID SERVICE]: Region {0} not found", mapName);
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// Cope with this viewer limitation.
+        /// </summary>
+        /// <param name="regInfo"></param>
+        /// <returns></returns>
+        public bool Check4096(GridRegion regInfo, out uint x, out uint y)
+        {
+            GridRegion defRegion = DefaultRegion;
+
+            ulong realHandle = m_HyperlinkHandles[regInfo.RegionID];
+            uint ux = 0, uy = 0;
+            Utils.LongToUInts(realHandle, out ux, out uy);
+            x = ux / Constants.RegionSize;
+            y = uy / Constants.RegionSize;
+
+            if ((Math.Abs((int)defRegion.RegionLocX - ux) >= 4096 * Constants.RegionSize) ||
+                (Math.Abs((int)defRegion.RegionLocY - uy) >= 4096 * Constants.RegionSize))
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void AddHyperlinkRegion(GridRegion regionInfo, ulong regionHandle)
+        {
+            m_HyperlinkRegions[regionInfo.RegionID] = regionInfo;
+            m_HyperlinkHandles[regionInfo.RegionID] = regionHandle;
+        }
+
+        private void RemoveHyperlinkRegion(UUID regionID)
+        {
+            // Try the hyperlink collection
+            if (m_HyperlinkRegions.ContainsKey(regionID))
+            {
+                m_HyperlinkRegions.Remove(regionID);
+                m_HyperlinkHandles.Remove(regionID);
+            }
+        }
+
+        #endregion
+
+        #region Get Hyperlinks
+
+        public GridRegion GetHyperlinkRegion(UUID regionID)
+        {
+            //GridRegion region = m_HypergridConnector.
+            return null;
+        }
+
+        #endregion
+
+        #region GetRegionBy X
+
+        public GridRegion GetRegionByUUID(UUID regionID)
+        {
+            if (m_HyperlinkRegions.ContainsKey(regionID))
+                return m_HyperlinkRegions[regionID];
+
+            return null;
+        }
+
+        public GridRegion GetRegionByPosition(int x, int y)
+        {
+            foreach (GridRegion r in m_HyperlinkRegions.Values)
+                if (r.RegionLocX == x && r.RegionLocY == y)
+                    return r;
+
+            return null;
+        }
+
+        public GridRegion GetRegionByName(string name)
+        {
+            foreach (GridRegion r in m_HyperlinkRegions.Values)
+                if (r.RegionName.ToLower() == name.ToLower())
+                    return r;
+
+            return null;
+        }
+
+        public List<GridRegion> GetRegionsByName(string name)
+        {
+            List<GridRegion> regions = new List<GridRegion>();
+
+            foreach (GridRegion r in m_HyperlinkRegions.Values)
+                if ((r.RegionName != null) && r.RegionName.ToLower().StartsWith(name.ToLower()))
+                    regions.Add(r);
+
+            return regions;
+
+        }
+
+        public List<GridRegion> GetRegionRange(int xmin, int xmax, int ymin, int ymax)
+        {
+            List<GridRegion> regions = new List<GridRegion>();
+
+            foreach (GridRegion r in m_HyperlinkRegions.Values)
+                if ((r.RegionLocX > xmin) && (r.RegionLocX < xmax) &&
+                    (r.RegionLocY > ymin) && (r.RegionLocY < ymax))
+                    regions.Add(r);
+
+            return regions;
+        }
+
+        #endregion
+
+
+
+    }
+}